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1.56 Semi Finished Blue Cut Bifocal Photo grey optical lenses
Nyob rau hauv lub hnub ci, xim ntawm lub lens yuav tsaus dua thiab lub teeb transmittance yuav txo qis thaum nws raug irradiated los ntawm ultraviolet thiab luv-wave visible light. Nyob rau hauv sab hauv tsev lossis tsaus ntuj lens lub teeb transmittance nce, ploj rov qab mus rau qhov kaj. Lub photochromism ntawm lenses yog automatic thiab reversible. Cov tsom iav hloov xim tuaj yeem kho qhov transmittance los ntawm kev hloov xim lens, yog li ntawd tib neeg lub qhov muag tuaj yeem hloov kho rau qhov kev hloov ntawm lub teeb ib puag ncig, txo qhov nkees ntawm qhov muag, thiab tiv thaiv lub qhov muag.
